Datasheet

Table Of Contents

INA231EVM Software Overview

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In addition to the INA231EVM software alert configuration, the Alert Configuration box includes the

Conversion Ready button that allows for a special functionality on the Alert pin. When the INA231

completes the conversions for its current operation, it triggers the Alert pin and notifies the user that

another conversion can be performed. In most cases, the INA231 conversion ready flag is not visible

because of the speed of the INA231 conversion process.

5.3 Using the INA231EVM Software

After configuring the INA231EVM software, the rest of the tabs can be evaluated. This section describes

the basic operation of the device, and offers guidelines for interpreting the graphic user interface (GUI).

5.3.1 INA231 Bus Voltage, Shunt Voltage, Current, and Power Reading Bar

The bottom bar of the INA231 software, as shown in Figure 22, allows the user to constantly check the

status of the INA231 unit itself. These values are updated each time the Read All Reg button is pressed at

the top of the software. In addition to the register values stored in the part, the software also includes flags

for when the part is ready to trigger another conversion and when the Alert pin is triggered.

Figure 22. INA231 Results Bar

5.3.2 Calculation and Theory of Operation

The Calculation tab, as shown in Figure 23, allows the user to follow the software flow with basic

calculations performed from within the device. It is important to note that the calculations are performed

with the decimal values of the corresponding registers.

Figure 23. Theory of Operation Flowchart on the Calculation Tab

INA231EVM Evaluation Board and Software Tutorial SBOU128–February 2013

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